sql - Group mysql query by 15 min intervals

Question

I've got a monitoring system that is collecting data every n seconds (n is approximately 10 but varies). I'd like to aggregate the collected data by 15 minute intervals. Is there a way to consolidate the timestamp values into 15 minute chunks to allow for grouping to work?

Answer 1

SELECT   FLOOR(UNIX_TIMESTAMP(timestamp)/(15 * 60)) AS timekey
FROM     table
GROUP BY timekey;